Segment information (Tables)

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Information about Company's Segments

Information about the Company's segments follows:

	Three Months Ended March 31,
	2024											2023
(Dollars in millions)	Total Revenues(a)			Inter- segment Revenues			Net Income (Loss)			Total Average Assets		Total Revenues(a)			Inter- segment Revenues			Net Income (Loss)			Total Average Assets
Commercial Bank	$	699		$	2		$	201		$	81,083	$	811		$	2		$	333		$	79,034
Retail Bank		1,268			—			446			52,232		1,234			—			452			51,293
Institutional Services and Wealth    Management		377			3			128			3,636		390			3			110			3,655
All Other		(84	)		(5	)		(244	)		74,527		(30	)		(5	)		(193	)		68,617
Total	$	2,260		$	—		$	531		$	211,478	$	2,405		$	—		$	702		$	202,599

(a)Total revenues are comprised of net interest income and other income. Net interest income is the difference between taxable-equivalent interest earned on assets and interest paid on liabilities owed by a segment and a funding charge (credit) based on the Company's internal funds transfer and allocation methodology. Segments are charged a cost to fund any assets (e.g. loans) and are paid a funding credit for any funds provided (e.g. deposits). The taxable-equivalent adjustment aggregated $12 million and $14 million for the three-month periods ended March 31, 2024 and 2023 and is eliminated in "All Other" total revenues.